442431344 has 10 divisors (see below), whose sum is σ = 857210760. Its totient is φ = 221215664.

The previous prime is 442431323. The next prime is 442431347. The reversal of 442431344 is 443134244.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442431347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13825964 + ... + 13825995.

It is an arithmetic number, because the mean of its divisors is an integer number (85721076).

Almost surely, 2^442431344 is an apocalyptic number.

It is an amenable number.

442431344 is a deficient number, since it is larger than the sum of its proper divisors (414779416).

442431344 is a wasteful number, since it uses less digits than its factorization.

442431344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27651967 (or 27651961 counting only the distinct ones).

The product of its digits is 18432, while the sum is 29.

The square root of 442431344 is about 21034.0520109655. The cubic root of 442431344 is about 761.9888719634.

Adding to 442431344 its reverse (443134244), we get a palindrome (885565588).

The spelling of 442431344 in words is "four hundred forty-two million, four hundred thirty-one thousand, three hundred forty-four".